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2. HVAC: REPLACEMENT VS. REPAIR - AOL

   www.aol.com/news/2008-08-15-hvac-replacement-vs...

   The time to consider upgrades and repairs for your home s heating and cooling systems is before you need the seasonal comforts they HVAC: REPLACEMENT VS. REPAIR

3. Does homeowners insurance cover AC? - AOL

   www.aol.com/finance/does-homeowners-insurance...

   The cost to replace an outside AC unit can vary widely, depending on where you live, the brand and the size. Expect to pay between $4,350 and $12,000 to replace an outside AC unit, which includes ...

4. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   For illustration, a detached house needing 10 kW (3 ton) of heating capacity might need three boreholes 80 to 110 m (260 to 360 ft) deep. [16] Radial or directional drilling. As an alternative to trenching, loops may be laid by mini horizontal directional drilling (mini-HDD). This technique can lay piping under yards, driveways, gardens or ...

5. Seasonal energy efficiency ratio - Wikipedia

   en.wikipedia.org/wiki/Seasonal_energy_efficiency...

   Air-conditioner sizes are often given as "tons" of cooling, where 1 ton of cooling equals 12,000 BTU/h (3.5 kW). 1 ton of cooling equals the amount of power that needs to be applied continuously over a 24-hour period to melt 1 ton of ice. The annual cost of electric energy consumed by an air conditioner may be calculated as follows:

6. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   The three major functions of heating, ventilation, and air conditioning are interrelated, especially with the need to provide thermal comfort and acceptable indoor air quality within reasonable installation, operation, and maintenance costs. HVAC systems can be used in both domestic and commercial environments.

7. 50 Times Cheap Fixes Had A Major Impact On Home Life - AOL

   www.aol.com/55-people-share-relatively-cheap...

   Image credits: chron0john #2. Under cabinet lighting. Cost me $150 and was 1000% worth it. DIY fire pit was about $50 worth of retaining wall blocks, also completely worth it.